Shimano Altus RD-M310 7 Speed 8 Speed Black MTB Rear Derailleur Black

The Shimano Altus rear derailleur features an advanced light-action, long-cage design with Teflon-coated bushings. What sets the Shimano Altus derailleur apart from other rear derailleurs is its unique 13 tooth upper and 15 tooth lower pulleys that provide a 43 teeth chain wrap capacity (more than conventional 11 tooth pulleys) and enable them to rotate with less friction.

• Advanced light-action design
• Teflon-coated bushings
• Direct-attach rear derailleurs

• Cage Length: Long
• Cassette Spacing: Shimano/SRAM 8
• Chain Wrap Capacity (teeth): 43 teeth
• Speed: 7/8-Speed
• Pulley: 13t upper & 15t lower
• Largest Cog (teeth): 34 teeth
• Shifter/Derailleur Compatibility: Shimano
• Weight (g): 326 g